[yodsanklai]

> They've been repeating the same message of doom

Who are they? you're citing "A senior U.N. environmental official". It is common rhetoric but it as no value. What is important to know is not what a single person said, but what the scientific consensus back then was.

According to the Intergovernmental Panel on Climate Change [1] in 1990 "global mean temperature will increase by about 0.3 °C per decade during the [21st] century".

It seems 0.8 degrees is close enough to the 0.3 * 3 °C they predicted.

Personally, I believe the most accurate prevision we can make today, based on current knowledge, is the one made by the GIEC. I don't see any reason to think that someone else knows better. And I also think that 30 years of research gives us more reliable prediction today than before.

[1] https://en.wikipedia.org/wiki/Intergovernmental_Panel_on_Cli...